CVE-2011-2381

CRLF injection vulnerability in Bugzilla 2.17.1 through 2.22.7, 3.0.x through 3.3.x, 3.4.x before...

4.3 Medium

CRLF injection vulnerability in Bugzilla 2.17.1 through 2.22.7, 3.0.x through 3.3.x, 3.4.x before 3.4.12, 3.5.x, 3.6.x before 3.6.6, 3.7.x, 4.0.x before 4.0.2, and 4.1.x before 4.1.3 allows remote attackers to inject arbitrary e-mail headers via an attachment description in a flagmail notification.

Exploit likelihood

1.52%Up 0.2 points since Feb 4, 2022

What each source reports

NVD Score used 4.3

Record: CVE-2011-2381
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-94
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-2381
Updated: 2026-11-02

EUVDEUVD-2011-2370 No score

Record: EUVD-2011-2370
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mxfx-g487-m97q No score

CRLF injection vulnerability in Bugzilla 2.17.1 through 2.22.7, 3.0.x through 3.3.x, 3.4.x before...

Record: GHSA-mxfx-g487-m97q
Weakness: CWE-94
Updated: 2026-11-02

Affected products

mozilla bugzilla

Affected packages

Affected packages
Package	Affected	Fixed
`bugzilla` Debian:6.0 From an advisory covering 10 CVEs	before 3.6.2.0-4.4, plus listed versions 3.6.2.0-4.2	3.6.2.0-4.4

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-2381 is a medium vulnerability (CVSS 4.3) in Mozilla Bugzilla, published August 9, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.52%, the 74th percentile. No source names a fixed version.